Spectroscopic and laser properties of photoexcited organic fluorescers embedded in composite gel systems
| Autor: | G. V. Maĭer, K. N. Solov'ev, T. A. Pavich, Yu. A. Manekina, V. A. Svetlichnyĭ, E. N. Tel’minov, Rimma T Kuznetsova, S. M. Arabei |
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| Rok vydání: | 2007 |
| Předmět: |
Dye laser
Materials science business.industry Energy conversion efficiency Composite number Physics::Optics Photochemistry Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Rhodamine chemistry.chemical_compound Optics chemistry law Excited state Physics::Chemical Physics Luminescence business Lasing threshold |
| Zdroj: | Optics and Spectroscopy. 102:208-217 |
| ISSN: | 1562-6911 0030-400X |
| DOI: | 10.1134/s0030400x07020087 |
| Popis: | The spectral luminescence and lasing characteristics of rhodamine 101T and phenalemine 512 embedded in simple and composite gel matrices of different compositions based on tetraethoxysilane were excited by XeCl laser radiation and the second harmonic of a Nd:YAG laser. It is established that a dye interacts with a solid matrix through formation of donor-acceptor and hydrogen-bonded solvates. The dependence of the lasing efficiency on the excitation intensity was determined, as well as the laser photostability of gel systems with dyes. It is shown that the pump conversion efficiency and the laser photostability of dyes in composite gel systems are higher than in simple gel matrices. |
| Databáze: | OpenAIRE |
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